| 208 | |
| 209 | |
| 210 | static int stackinuse (lua_State *L) { |
| 211 | CallInfo *ci; |
| 212 | StkId lim = L->top; |
| 213 | for (ci = L->ci; ci != NULL; ci = ci->previous) { |
| 214 | if (lim < ci->top) lim = ci->top; |
| 215 | } |
| 216 | lua_assert(lim <= L->stack_last); |
| 217 | return cast_int(lim - L->stack) + 1; /* part of stack in use */ |
| 218 | } |
| 219 | |
| 220 | |
| 221 | void luaD_shrinkstack (lua_State *L) { |